BxILMerge is like ILMerge to merge unmanaged DLLs and any other files (data files, images, videos, databases etc.) with managed DLL.
bxilmerge /out:<output assembly with embedded files> <input assembly> <unmanaged DLLs and other files to embed>...
BxILMerge uses Mono.Cecil to write content of each file into output assembly, adding additional code that virtualizes embedded files.
- you want to include assets into a managed assembly;
- you want to "link" a managed assembly with unmanaged DLLs (e.g. unmanaged part of SQLite);
- and so on.